WO2021233526A1 - Heat exchanger device, method for operating a heat exchanger device, and method for producing a heat exchanger device - Google Patents

Abstract

The aim of the invention is to provide a heat exchanger device, in particular a solar radiation receiving device, which is simple and inexpensive to produce and exhibits a particularly high degree of efficiency and extended durability. This is achieved by a heat exchanger device, in particular a solar radiation receiving device which comprises the following: a heating chamber which comprises a wall and an interior surrounded by the wall; a rotary drive device; and a feed device for feeding a heat transfer medium to the interior of the heating chamber, wherein the heating chamber can be rotated about a rotational axis by means of the rotary drive device such that the heat transfer medium can be guided along the inner face of the wall of the heating chamber, thereby forming a heat transfer medium film, and the heating chamber comprises a support body and an inner container which comprises the wall.

Description

Heat transfer device, method for operating a heat transfer device and method for producing a

Heat exchanger device

The present invention relates to a heat transfer device, in particular a solar radiation receiver device.

Heat transfer devices, in particular solar radiation receiver devices, are known, for example, from DE 10 2014 106 320 A1 and DE 10 2010 062 367 A1.

The present invention is based on the object of providing a heat transfer device, in particular a solar radiation receiver device, which can be produced simply and inexpensively and which in particular has a high degree of efficiency and an extended shelf life.

According to the invention, this object is achieved by a heat transfer device, in particular a solar radiation receiver device, with the features of claim 1.

The heat transfer device, in particular the solar radiation receiver device, preferably comprises the following: a heating chamber which comprises a wall and an interior space surrounded by the wall; a rotary drive device; a supply device for supplying a heat transfer medium to the interior of the heating chamber, the heating chamber being rotatable about an axis of rotation by means of the rotary drive device in such a way that the heat transfer medium can be guided along an inside of the wall of the heating chamber with the formation of a heat transfer medium film, wherein the heating chamber comprises a support body and an inner container which comprises the wall.

The heating chamber is in particular a heating drum.

The inner container is arranged in particular in the support body.

In the context of this description and the appended claims, the term “in particular” is used exclusively to describe optional features.

It can be beneficial if the support body surrounds the inner container in a radia len direction.

In a cross section taken perpendicular to the axis of rotation, the inner container has, for example, a diameter in the range from approximately 1.4 m to approximately 2 m, for example approximately 1.6 m.

In the context of this description and the appended claims, a radial direction is understood in particular to be a direction perpendicular to the axis of rotation.

The support body is preferably an outer jacket of the heating chamber.

The interior is in particular vice ben from the wall of the inner container.

The inner container is preferably an inner jacket, in particular a so-called "inliner", of the heating chamber.

If the heat transfer device is a solar radiation receiver device, this can in particular be used as a tower receiver which the solar radiation receiver device is arranged on a tower at a distance from a floor (based on the direction of gravity).

In particular, it can be provided that the heat transfer medium comprises or is formed from particles or particles, for example particles or particles made of sintered bauxite.

The particles or particles preferably have an average particle diameter of about 250 μm to about 1.8 mm.

It can be favorable if the wall of the inner container has a mean roughness in the range from approximately 0.5 times an average particle diameter of the particles or particles to approximately 1.0 times an average particle diameter of the particles or particles.

It can also be favorable if the wall of the inner container has an average roughness in the range from approximately 0.5 times an average particle diameter of the particles or particles to approximately 1.0 times an average particle diameter of the particles or particles.

During operation of the heat transfer device, a heat transfer medium film is preferably formed which, perpendicular to the axis of rotation, in a radial direction has a thickness in the range from approximately a simple average particle diameter of the particles or particles to approximately three times the average particle diameter of the particles or particles.

In the case of the heat transfer medium, there is preferably no agglomeration of particles or particles up to at least approximately 800 ° C., in particular up to at least approximately 1,000 ° C.. The particles or particles preferably have a high sphericity, in particular greater than approximately 0.8, in particular greater than approximately 0.9.

The particles or particles are preferably resistant to thermal shock.

With the heat transfer device according to the invention, a heat transfer medium film can be formed on the wall due to centrifugal forces caused by the rotation of the heating chamber.

If the heat transfer device is a solar radiation receiver device, the heating chamber is acted upon by solar radiation, for example, and the heat transfer medium is heated.

As an alternative to this, it is conceivable, for example, that the heat transfer medium is heated with an electric radiant heater.

By rotating the heating chamber at a correspondingly rapid rate, it can be achieved that centrifugal forces press the heat transfer medium against the wall, thereby increasing the adhesion to the wall. This in turn allows the particular residence time of the heat transfer medium in the heating chamber to be increased. Furthermore, the heat transfer medium can thereby receive a tangential speed. As a result, the heat transfer medium loss (that is, the passage of heat transfer medium without sufficient heating in the heating chamber) can preferably be reduced, since the heat transfer medium is displaced outwards against the wall. With a tangential speed, in particular, temperature compensation can also be achieved in the circumferential direction, since, for example, different zones are repeatedly traversed by the heat transfer medium in the circumferential direction. This preferably gives a more homogeneous temperature distribution when the heat transfer medium emerges from the heating chamber. In particular, the speed is selected to be so high that an optically dense or approximately dense heat transfer medium film is produced over the entire circumference of the wall.

In particular, the residence time of the heat transfer medium in the interior can be increased. In this way, the efficiency of the heat exchanger device can preferably be increased.

Temperature gradients in the heat transfer medium film can preferably be compensated for and a more homogeneous temperature distribution can thereby be achieved.

By appropriate control of the rotation and / or an angle between the axis of rotation and the direction of gravity, a controlled adaptation of the heat exchanger device can in particular also take place, for example in partial load operation or full load operation.

A heat transfer device according to the invention can be used, for example, to generate electricity. For example, heated heat transfer medium can be used to generate steam, which is used to drive a steam turbine of a power plant, for example a solar thermal power plant.

The heat transfer device according to the invention is preferably also suitable for the transfer of process heat to industrial processes at high temperatures, for example in a foundry, a steelworks, a cement factory and / or in a chemical plant. It can be beneficial if heated heat transfer medium gives off heat to the respective industrial process.

Heated heat transfer medium can preferably be stored in a simple manner. In particular, a demand-driven provision of services can then take place. In order to produce a heat transfer medium film that is as coherent as possible, an angle between the axis of rotation and the direction of gravity and the speed of rotation of the heating chamber are preferably adapted to one another. Properties of the heat transfer medium and the wall and in particular the frictional properties can also be included in the adaptation. For example, if a heat transfer device according to the invention is used in conjunction with a heliostat field, then the angle between the axis of rotation and the direction of gravity is usually specified. If the type of heat transfer medium and the wall is specified, then the heat transfer medium film can be generated by appropriate selection or setting and optionally also variable setting of the rotational speed (or rotational speed).

It can be favorable if the heating chamber has a coupling-in area for the heat transfer medium and a coupling-out area for the heat transfer medium. The coupling-in area is, for example, in relation to the direction of gravity above the coupling-out area. "Cold" heat transfer medium is coupled in at the coupling-in area and "hot" heat transfer medium heated by solar radiation is coupled out at the coupling-out area. The heat transfer medium is passed through the heating chamber in the direction of gravity.

In principle, it is also possible that the heat transfer medium is guided in the heating chamber against the direction of gravity, that is, the heat transfer medium is coupled in at the bottom of the heating chamber in relation to the direction of gravity and is decoupled at the top in relation to the direction of gravity. This can be achieved in particular by a combination of vibration and rotation with the appropriate rotational speed and, if necessary, appropriate wall design (in particular via an inclined wall). In one embodiment of the heat exchanger device, it is provided that the heating chamber comprises a rotary coupling device by means of which the inner container is rotatably coupled to the support body.

It can be favorable if the rotary drive device comprises one or more rotary drive elements, by means of which the support body can be set in rotation about the axis of rotation.

One or more rotary drive elements of the rotary drive device preferably drive the support body directly.

It can be particularly favorable if the inner container can also be set in rotation due to a rotational coupling of the same with the support body by setting the support body in rotation about the axis of rotation.

In one embodiment of the heat exchanger device, it is provided that the rotary coupling device comprises a first rotary coupling section and / or one or more further rotary coupling sections, the inner container being rotatably coupled to the support body by means of the rotary coupling sections of the rotary coupling device.

For example, it is conceivable that the rotary coupling device comprises a first rotary coupling section and two further rotary coupling sections.

In one embodiment of the heat exchanger device, it is provided that the inner container is supported on the support body in the direction of gravity by means of the first rotary coupling section.

The inner container is supported on the support body by means of the first rotary coupling section, in particular in an axial direction. A force component acting parallel to the axis of rotation and / or in the axial direction of the weight force acting on the inner container is absorbed in particular by means of the first rotary coupling section.

Rotary coupling elements of the first rotary coupling section arranged on the support body form in the axial direction in particular an abutment for rotary coupling elements arranged on the inner container of the first rotary coupling section.

In the context of this description and the appended claims, an axial direction is understood to mean, in particular, a direction running parallel to the axis of rotation of the heating chamber.

In one embodiment of the heat exchanger device, it is provided that the first rotary coupling section is arranged in the direction of gravity above the one or more further rotary coupling sections.

As an alternative to this, it is conceivable that the first rotary coupling section is arranged in the direction of gravity below the one or more further rotary coupling sections.

In one embodiment of the heat exchanger device it is provided that the first rotary coupling section and / or the one or more further rotary coupling sections each have one or more rotary coupling elements which are arranged on the support body and one or more rotary coupling elements which are arranged on the inner container, include.

Rotary coupling elements arranged on the support body are in particular rotary coupling elements on the support body.

Rotary coupling elements on the support body side are preferably fixed on the support body, for example screwed to it. Rotary coupling elements arranged on the inner container are in particular rotary coupling elements on the inner container side.

Rotary coupling elements on the inner container side are preferably fixed directly or indirectly to the inner container, for example screwed to it.

In particular, it is conceivable that the first rotary coupling section and / or the one or more further rotary coupling sections each comprise 3 to 9 rotary coupling elements, which are arranged on the support body, and 3 to 9 rotary coupling elements, which are arranged on the inner container.

For example, the first rotary coupling section and / or the one or more further rotary coupling sections each comprise 5 rotary coupling elements, which are arranged on the support body, and 5 rotary coupling elements each, which are arranged on the inner container.

Rotary coupling elements of a respective rotary coupling section are preferably evenly distributed over a circumference of the heating chamber is arranged before.

It can be advantageous if all the rotary coupling elements of a respective rotary coupling section are arranged essentially at the same height in relation to an axial direction.

In particular, a rotary coupling element which is arranged on the inner container is assigned to each rotary coupling element which is arranged on the support body. In one embodiment of the heat exchanger device, it is provided that rotary coupling elements which are arranged on the inner container are each fixed on a support ring.

As an alternative to this, it is conceivable that rotary coupling elements which are arranged on the inner container are fixed directly to the inner container.

Rotary coupling elements fixed on a respective support ring are screwed to the support ring, for example.

A roundness of the inner container can preferably be ensured by means of one or more support rings.

In one embodiment of the heat exchanger device, it is provided that rotary coupling elements which are arranged on the support body are fixed on the latter.

Rotary coupling elements fixed on the support body are screwed to the support body, for example.

In one embodiment of the heat exchanger device, it is provided that the inner container is supported on one or more rotary coupling elements of the first rotary coupling section, which are arranged on the support body, by means of one or more rotary coupling elements of the first rotary coupling section, which are arranged on the inner container.

The first rotary coupling section preferably forms an axial fixed bearing. In one embodiment of the heat exchanger device, it is provided that rotary coupling elements of the one or more further rotary coupling sections, which are arranged on the inner container, can be displaced in an axial direction relative to rotary coupling elements of the one or more further rotary coupling sections, which are arranged on the support body are.

In particular, the inner container is supported in the axial direction by means of the rotary coupling elements of the one or more further rotary coupling sections which are arranged on the inner container, not on the rotary coupling elements of the one or more further rotary coupling sections which are arranged on the support body.

The one or more further rotary coupling sections preferably form an axial floating bearing.

Preferably, free axial thermal expansion of the inner container can be made possible by means of the one or more further rotary coupling sections.

In one embodiment of the heat exchanger device it is provided that rotary coupling elements of the rotary coupling sections, which are arranged on the inner container, can be displaced in a radial direction relative to rotary coupling elements of the rotary coupling sections, which are arranged on the support body.

The first rotary coupling section and the one or more further rotary coupling sections form, in particular, a radial floating bearing.

Preferably, free radial thermal expansion of the inner container can be made possible by means of the first rotary coupling section and the one or more further rotary coupling sections. By free axial thermal expansion and / or by free radial thermal expansion of the inner container, a uniform deformation of the inner container due to thermal expansion can preferably be made possible during operation of the heat transfer device.

In particular, the inner container can be prevented from bulging.

A uniform deformation of the inner container due to thermal expansion can in particular ensure a uniform distribution of the heat transfer medium during operation of the heat transfer device.

Preferably, local hotspots can be prevented, which can lead to the inner container burning through, for example.

It can also be beneficial if a free axial and / or radial thermal expansion of the inner container can extend the durability and / or service life of the heat exchanger device.

In one embodiment of the heat exchanger device, it is provided that the first rotary coupling section and / or the one or more further rotary coupling sections each comprise one or more radial stop elements, which allow a radial displacement of the rotary coupling elements, which are arranged on the inner container, relative to the rotation coupling elements, which are arranged on the support body, limit.

It can be favorable if in each case a radial stop element is integrated in the rotary coupling elements arranged on the support body and / or in the rotary coupling elements arranged on the inner container of a respective rotary coupling section. It can be advantageous if the radial stop elements are arranged and / or aligned in such a way that a radial displacement of the rotary coupling elements, which are arranged on the inner container, relative to the rotary coupling elements, which are arranged on the support body, only when a maximum Operating temperature of the heat exchanger device is limited.

In one embodiment of the heat exchanger device, it is provided that rotary coupling elements of the one or more further rotary coupling sections arranged on the inner container each comprise two guide surfaces, with a rotary coupling element arranged on the support body of the one or more further rotary coupling sections being guided between the two guide surfaces.

Preferably, because rotary coupling elements of the one or more further rotary coupling sections arranged on the inner container each comprise two guide surfaces, between which a rotary coupling element of the one or more further rotary coupling sections arranged on the support body is arranged, jamming of the rotary coupling elements due to Thermal expansion can be prevented.

In one embodiment of the heat exchanger device, it is provided that the two guide surfaces of a respective rotary coupling element of the one or more further rotary coupling sections are arranged parallel to one another and / or parallel to an axial direction and / or parallel to a radial direction.

Preferably, by such an arrangement of the two guide surfaces of a respective rotary coupling element of the one or more wide ren rotary coupling sections can be made possible that Drehkopplungsele elements of the rotary coupling sections, which are arranged on the inner container, in a radial direction relative to the rotary coupling elements Rotary coupling sections, which are arranged on the support body, are displaceable and that rotary coupling elements of the one or more further rotary coupling sections, which are arranged on the inner container, in an axial direction relative to rotary coupling elements of the one or more further rotary coupling sections, which are on the support body are arranged, are displaceable.

In one embodiment of the heat exchanger device, it is provided that rotary coupling elements of the first rotary coupling section arranged on the inner container each comprise two guide surfaces, a rotary coupling element of the first rotary coupling section arranged on the support body being guided between the two guide surfaces.

The guide surfaces of the rotary coupling elements of the first rotary coupling section and / or the guide surfaces of the rotary coupling elements of the one or more further rotary coupling sections are preferably of substantially planar design.

In one embodiment of the heat exchanger device, it is provided that the two guide surfaces of a respective rotary coupling element of the first rotary coupling section are arranged parallel to one another and / or parallel to a radial direction.

Such an arrangement of the two guide surfaces of a respective rotary coupling element of the first rotary coupling section can preferably enable rotary coupling elements of the rotary coupling sections which are arranged on the inner container to be displaced in a radial direction relative to rotary coupling elements of the rotary coupling sections which are arranged on the support body .

In one embodiment of the heat exchanger device, it is provided that a respective rotary coupling element which is arranged on the support body comprises a guide element which is positioned between the two guide surfaces of a respective rotary coupling element arranged on the inner container protrudes.

A guide element of a respective rotary coupling element arranged on the support body is in particular an inner guide element.

The two guide surfaces of a respective rotary coupling element arranged on the inner container form, in particular, an outer guide element.

The guide element of a respective rotary coupling element arranged on the support body is preferably convex on its sides facing the guide surfaces.

It can be advantageous, for example, if the guide element of the respective rotary coupling element arranged on the support body is essentially spherical.

In one embodiment of the heat exchanger device, it is provided that one or more rotary coupling elements arranged on the inner container each comprise an axial stop element for one or more rotary coupling elements arranged on the support body.

In one embodiment of the heat exchanger device, it is provided that the axial stop element of a respective rotary coupling element of the first rotary coupling section, which is arranged on the inner container, comprises two support surfaces.

It can be favorable if a respective support surface of the axial stop element of a respective rotary coupling element of the first rotary coupling section arranged on the inner container is essentially flat. In one embodiment of the heat exchanger device it is provided that an angle between a plane in which a guide surface of a respective rotary coupling element of the first rotary coupling section is arranged and a plane in which a support surface of the respective rotary coupling element of the first rotary coupling section is arranged adjacent to the guide surface , is greater than an angle between the axial direction and the direction of a resulting force vector of the axial force acting on the rotary coupling element and the radial force acting on the rotary coupling element.

In one embodiment of the heat exchanger device, it is provided that the guide surfaces and the support surfaces of a respective rotary coupling element of the first rotary coupling section are arranged symmetrically to a plane spanned by the axis of rotation and a radial direction.

In one embodiment of the heat exchanger device, it is provided that the support body and / or the inner container are formed essentially as a hollow cylinder.

In particular, it is conceivable that the support body and / or the inner container have a circular cross-section perpendicular to the axis of rotation.

The inner container preferably has a constant material thickness.

It can be favorable if a material thickness of the inner container is in the range of approximately 1 mm to approximately 3 mm, for example in the range of approximately 2 mm.

In one embodiment of the heat transfer device, it is provided that the inner container comprises or is formed from a high temperature-resistant material, for example a metallic material, a ceramic material or a fiber-reinforced ceramic material. The high-temperature-resistant material of the inner container is, for example, a high-temperature alloy.

In one embodiment of the heat transfer device, it is provided that the support body comprises or is formed from a metallic material, a ceramic material or a fiber-reinforced plastic material.

For example, it is conceivable that the support body is a metal tube.

In one embodiment of the heat exchanger device, it is provided that the heating chamber comprises one or more support rings for supporting the inner container.

It can be advantageous if a support ring is assigned to each rotary coupling section.

In particular, it is conceivable that the one or more support rings are designed to be closed in the shape of a ring.

The one or more support rings are preferably formed from the same material as the inner container.

Preferably, the one or more support rings are fixed on the Innenbehäl ter.

The one or more support rings are preferably arranged radially outside of the inner container.

For example, it is conceivable that the one or more support rings have a U-shaped cross section.

In one embodiment of the heat exchanger device, it is provided that the support body of the heating chamber is a structural component. It can be favorable if the support body has an average wall thickness in the range from approximately 3 mm to approximately 20 mm.

In one embodiment of the heat exchanger device, it is provided that the heating chamber comprises an insulation material which is arranged between the support body and the inner container.

It can be favorable if the heating chamber has a gap between the support body and the inner container, in which the insulation material is arranged.

An insulation layer made of the insulation material is preferably arranged on the support body, in particular fixed on it.

The insulation material preferably covers an inner surface of the support body facing the inner container essentially completely.

In one embodiment of the heat exchanger device, it is provided that an insulation material arranged between the support body and the inner container is fixed to the support body.

The insulation material arranged between the support body and the inner container is in particular not connected to the inner container.

In particular, the insulation material is not directly attached to the inner container.

In one embodiment of the heat transfer device, it is provided that the insulation material comprises a first insulation material, for example glass wool, silicate wool or an aluminum oxide fiber, and / or that the insulation material comprises a second insulation material, for example a nanoporous insulation material. The first and the second insulation material are in particular different from one another.

The second insulation material has, in particular, a lower thermal conductivity than the first insulation material.

If the second insulation material is a fragile material, a mechanical load on the insulation material can preferably be reduced by arranging the insulation material on the support body, for example a mechanical load due to flexing movements. Preferably, by reducing the mechanical load on the insulation material, the durability and / or service life of the insulation material can be extended.

In one embodiment of the heat exchanger device, it is provided that the axis of rotation is arranged relative to the direction of gravity at an angle in the range from approximately 15 ° to approximately 60 °, preferably in the range from approximately 30 ° to approximately 45 °.

The present invention further relates to a method for operating a heat exchanger device, in particular a solar radiation receiver device, preferably a heat exchanger device according to the invention, with the features of claim 31.

The method for operating a heat exchanger device preferably comprises the following:

Rotation of a heating chamber of the heat exchanger device about an axis of rotation by means of a rotary drive device, a support body of the heating chamber being able to be set in rotation about the axis of rotation by means of the rotary drive device, an inner container of the heating chamber being rotatably coupled to the support body by means of a rotary coupling device of the heating chamber. In one embodiment of the method for operating a heat transfer device, it is provided that rotary coupling elements of a first rotary coupling section of the rotary coupling device arranged on the inner container each comprise two guide surfaces, with a rotary coupling element of the first rotary coupling section arranged on the support body being guided between the two guide surfaces and on each other when the heating chamber rotates about the axis of rotation, is alternately supported on the two guide surfaces.

In one embodiment of the method for operating a heat transfer device it is provided that one or more rotary coupling elements arranged on the inner container of a first rotary coupling section of the rotary coupling device each comprise an axial stop element for one or more rotary coupling elements arranged on the support body, the axial stop element of a respective on the inner container arranged rotary coupling element of the first Drehkopplungsab section comprises two support surfaces, wherein a rotary coupling element arranged on the support body of the first rotary coupling portion is supported alternately on the two support surfaces when the heating chamber rotates about the axis of rotation.

In one embodiment of the method for operating a heat transfer device, provision is made for the rotary coupling elements of one or more further rotary coupling sections of the rotary coupling device arranged on the inner container to each comprise two guide surfaces, with a rotary coupling element arranged on the support body of the one or more further rotary coupling sections between the two guide surfaces is guided and is supported alternately on the two guide surfaces when the heating chamber rotates about the axis of rotation. The present invention also relates to a method for producing a heat exchanger device, in particular a solar radiation receiver device, preferably a heat exchanger device according to the invention.

The present invention is therefore based on the further object of providing a heat exchanger device, in particular a solar radiation receiver device, preferably a heat exchanger device according to the invention, which can be produced easily and inexpensively and which in particular has a high degree of efficiency and an extended shelf life.

This object is achieved by a method for producing a heat transfer device having the features of claim 35.

The method preferably comprises:

Providing a support body;

Providing an inner container;

Arranging the inner container in the support body;

Arranging rotary coupling elements of a first rotary coupling section and / or one or more further rotary coupling sections on the inner container; and

Arranging rotary coupling elements of a first rotary coupling section and / or one or more further rotary coupling sections on the support body.

The process steps are preferably carried out in the order given above.

The method according to the invention for producing a heat exchanger device preferably has one or more of the features and / or advantages described in connection with the heat exchanger device according to the invention. The heat transfer device according to the invention preferably has one or more of the features and / or advantages described in connection with the method according to the invention for producing a heat transfer device.

In particular, rotary coupling elements on the support body side are fixed on the support body, with rotary coupling elements on the inner container side being fixed on the inner container.

A rotary coupling element on the inner container side is preferably assigned to each rotary coupling element on the support body side.

In one embodiment of the method for producing a heat transfer device, it is provided that rotary coupling elements which are arranged on the inner container are arranged on the inner container via an opening in the support body.

A respective opening in the support body, via which a rotary coupling element is arranged on the inner container, is preferably closed when a rotary coupling element is arranged on the support body.

A respective opening arranged in the support body, via which a rotary coupling element is arranged on the inner container, is preferably arranged in a lateral surface of the support body.

In one embodiment of the method for producing a heat transfer device, it is provided that an insulation material is arranged on the support body before the inner container is arranged in the support body.

In one embodiment of the method for producing a heat transfer device, it is provided that the insulation material before Arranging the rotary coupling elements on the inner container and on the

Support body on an inner surface of the inner container facing the inner container

Support body is set.

Further features and / or advantages of the invention are the subject of the following description and the drawings of execution examples.

In the drawings show:

1 shows a schematic representation of the mode of operation of a solar thermal power plant;

FIG. 2 is a schematic perspective illustration of a heat transfer device which can be used as a solar radiation receiver device of the solar thermal power plant from FIG. 1; FIG.

3 shows a detail of a schematic top view of the heat transfer device from FIG. 2 when looking in the direction of arrow 3 in FIG. 2;

FIG. 4 shows a schematic section through the heat transfer device from FIG. 2 along the line IV-IV in FIG. 3;

FIG. 5 shows an enlarged illustration of the area V in FIG. 4; FIG.

FIG. 6 shows a schematic perspective illustration of part of the heat transfer device from FIG. 2 from the rear; FIG.

7 shows a schematic perspective illustration of a heating chamber of the heat transfer device from FIG. 2;

FIG. 8 is a schematic front view of the heating chamber from FIG. 7; FIG. 9 shows a schematic perspective illustration of rotary coupling elements of a first rotary coupling section of a rotary coupling device of the heat transfer device;

Fig. 10 is a schematic exploded view of the rotary coupling elements from Fig. 9;

11 shows a schematic section through the rotary coupling elements of the first rotary coupling section from FIG. 9 during a load in a downward movement;

FIG. 12 shows a schematic section through the rotary coupling elements of the first rotary coupling section from FIG. 9 with a load in an upward movement; FIG.

13 shows a schematic perspective illustration of rotary coupling elements of a further rotary coupling section of a rotary coupling device of the heat transfer device;

14 shows a schematic exploded view of the rotary coupling elements from FIG. 13;

15 shows a schematic section through the rotary coupling elements of the further rotary coupling section from FIG. 13; and

16 shows a schematic perspective illustration of one on one

Support body of the heating chamber from Figure 7 arranged rotary coupling element;

Identical or functionally equivalent elements are provided with the same reference symbols in all figures. An exemplary embodiment of a solar thermal power plant, which is shown schematically in FIG. 1 and denoted there by 100, comprises in particular a heliostat field 102 with a plurality of heliostats 104.

A heliostat 104 preferably comprises a mirror surface 106 which can be aligned about at least two axes.

Solar radiation 108 can be directed, in particular bundled, onto a solar radiation receiver device 110 via the mirror surfaces 106 of the heliostat field 102. Solar radiation directed onto the solar radiation receiver device 110 is indicated in FIG. 1 with the reference number 112.

In the exemplary embodiment shown, the solar thermal power plant 100 comprises (at least) one tower receiver 114, in which the solar radiation receiver device 110 is arranged in particular on a tower 116 at a distance from a floor 118 (in relation to the direction of gravity G), that is to say elevated. The heliostats 104 are preferably also arranged on the floor 118.

The solar radiation receiver device 110 is in particular a particle solar radiation receiver device to be described which is operated with particles as a heat transfer medium.

The solar thermal power plant 100 comprises a first circuit 120, which is a particle circuit. In this first circuit 120, particles are passed through a heat exchanger 122. The first circuit 120 has a high-temperature branch 124 and a low-temperature branch 126. The low-temperature branch 126 leads from an output 128 of the heat exchanger 122 to an input 130 of the (particle) solar radiation receiver device 110. The high-temperature branch 124 leads from an output 132 of the solar radiation receiver device 110 to an input 134 of the heat exchanger 122 126 of the solar radiation receiver device 110 feed and are heated there by solar radiation. Heated particles can be fed to the heat exchanger 122 via the high-temperature branch 124 and can there give off heat to a second circuit 136.

It can be provided that a heat store 138 (low temperature heat store) is arranged in the low-temperature branch 126.

As an alternative or in addition, it is possible for a heat store 140 (high-temperature heat store) to be arranged in the high-temperature branch 124.

The second circuit 136 is a turbine circuit. A turbine 142, in particular a steam turbine, which is coupled to an electrical generator 144 for generating electrical energy, is arranged in it.

The second circuit 136 comprises a high-temperature branch 146 which leads from an outlet 148 of the heat exchanger 122 to the turbine 142. The second circuit 136 further comprises a low-temperature branch 150, which leads from the turbine 142 or a condenser 152 connected downstream of the turbine to an input 154 of the heat exchanger 122.

In the low-temperature branch 150, a pump 156, in particular, is arranged, which pumps a fluid through the second circuit 136.

The fluid of the second circuit 136 (in particular water) is heated at the heat exchanger 122 and steam is generated as a result. This steam is fed to the turbine 142 via the high-temperature branch 146 and expanded therein. As a result, the thermal energy is converted into mechanical energy, which drives the electrical generator 144 to generate electricity.

The steam is expanded and finally condenses on the condenser 152 to form water. This condensate is returned in the low-temperature branch 150 to the heat exchanger 122 for renewed generation of steam. In The embodiment shown shows a single-stage turbine arrangement. It is also possible for the turbine arrangement to be multi-stage.

As an alternative or in addition to generating electricity, it is also possible, for example, for a solar radiation receiver device 110 to be used to generate process heat or to bring about chemical conversions or to produce fuels. Other applications are also conceivable.

The basic structure of a solar radiation receiver device 110 is known from DE 10 2010 062 367 A1 and from DE 10 2014 106 320 A1, to which reference is hereby made explicitly and the content of which is hereby made the subject of this application by reference.

The solar thermal power plant 100 shown in FIG. 1 is preferably operated with a solar radiation receiver device 110, which is designed in accordance with the heat transfer device 158 shown in FIGS. 2 to 14.

The heat transfer device 158 preferably comprises a heating chamber 160.

The heat transfer device 158 preferably further comprises a rotary drive device 162 and a supply device 164 for supplying a heat transfer medium, not shown in the drawings, to an interior space of the heating chamber 160 that is yet to be described.

The heating chamber 160 preferably comprises a support body 166 and an inner container 168, which is arranged in particular in the support body 166 and which comprises a wall 170.

The support body 166 is preferably an outer jacket 172 of the heating chamber 160. The support body 166 of the heating chamber 160 is preferably part of a structural component.

The inner container 168 is preferably an inner jacket 174, in particular a so-called “inliner”, of the heating chamber 160.

The wall 170 in particular surrounds the interior 176 of the heating chamber 160.

The heating chamber 160 is preferably rotatable about an axis of rotation 178 by means of the rotary drive device 162 in such a way that the heat transfer medium can be guided along an inside of the wall 168 of the heating chamber 160 with the formation of a heat transfer medium film (not shown in the drawing).

The rotary drive device 162 preferably comprises one or more rotary drive elements, by means of which the support body 166 can be set in rotation about the axis of rotation 178.

One or more rotary drive elements of the rotary drive device 162 preferably drive the support body 166 directly.

The axis of rotation 178 is preferably arranged relative to the direction of gravity G at an angle in the range from approximately 15 ° to approximately 60 °, preferably in the range from approximately 30 ° to approximately 45 °.

In a cross section taken perpendicular to the axis of rotation 178, the inner container 168 has, for example, a diameter 180 in the range from approximately 1.4 m to approximately 2 m, for example approximately 1.6 m.

The support body 166 and the inner container 168 are preferably formed essentially as a hollow cylinder. The support body 166 and the inner container 168 preferably have a circular cross-section perpendicular to the axis of rotation 178.

The inner container 166 preferably has a constant material thickness.

It can be favorable if a material thickness of the inner container 168 is in the range from approximately 1 mm to approximately 3 mm, for example in the range of approximately 2 mm.

The inner container 168 preferably comprises or is formed from a high-temperature-resistant material, for example a metallic material, a ceramic material or a fiber-reinforced ceramic material.

The high-temperature-resistant material of the inner container 168 is, for example, a high-temperature alloy.

It can be favorable if the support body 166 comprises a metallic material, a ceramic material or a fiber-reinforced plastic material or is formed from this.

For example, it is conceivable that the support body 166 is a metal tube.

It can be favorable if the support body 166 has an average wall thickness in the range from approximately 3 mm to approximately 20 mm.

A lower end 182 of the heating chamber 160 with respect to the direction of gravity G is in particular designed to be open, so that an inlet opening 184 of the heating chamber 160 is formed.

Solar radiation 112 can enter the interior 176 of the heating chamber 160 through this inlet opening 184. Due to the rotation of the heating chamber 160 about the axis of rotation 178, the heat transfer medium spreads on the wall 170 and thereby forms a heat transfer medium film.

It is favorable if the heating chamber 160 has a coupling-in area 186 for the heat transfer medium and a coupling-out area 188 for the heat transfer medium.

In relation to the direction of gravity G, the coupling-in area 186 is preferably above the coupling-out area 188.

In particular, “cold” heat transfer medium is coupled in at the coupling-in region 186 and “hot” heat-transfer medium is coupled out at the coupling-out region 188.

The heat transfer medium is passed through the heating chamber 160 in particular in the direction of gravity G and is preferably transported, in particular conveyed, from an upper end 190 in the direction of gravity G to the lower end 182.

It can be favorable if the heat transfer medium comprises or is formed from particles or particles, for example particles or particles made of sintered bauxite.

The particles or particles preferably have an average particle diameter of about 250 μm to about 1.8 mm.

It can be favorable if the wall 168 of the inner container has a mean roughness value in the range from approximately 0.5 times an average particle diameter of the particles or particles to approximately 1.0 times an average particle diameter of the particles or particles. It can also be favorable if the wall of the inner container 166 has an average roughness in the range from approximately 0.5 times an average particle diameter of the particles or particles to approximately 1.0 times an average particle diameter of the particles or particles.

During operation of the heat transfer device 158, a heat transfer medium film is preferably formed which, perpendicular to the axis of rotation 178 in a radial direction 192, has a thickness in the range from approximately a simple average particle diameter of the particles or particles to approximately three times the average particle diameter of the particles or particles.

In the case of the heat transfer medium, there is preferably no agglomeration of particles or particles up to at least approximately 800 ° C., in particular up to at least approximately 1,000 ° C..

The particles or particles preferably have a high sphericity, in particular greater than approximately 0.8, in particular greater than approximately 0.9.

The particles or particles are preferably resistant to thermal shock.

By correspondingly rapid rotation of the heating chamber 160, it can be achieved that centrifugal forces press the heat transfer medium against the wall 170 and thereby an increased wall adhesion is obtained.

As a result, in particular, the residence time of the heat transfer medium in the heating chamber 160 can be increased.

Furthermore, the heat transfer medium can thereby preferably receive a tangential velocity. This makes it possible in particular to reduce the loss of heat transfer medium (i.e. the passage of heat transfer medium without Reduce sufficient heating in the heating chamber 160), since the heat transfer medium is shifted to the outside against the wall 170. A temperature compensation can preferably also be achieved in the circumferential direction by means of a tangential speed, since, for example, different zones are repeatedly traversed by the heat transfer medium in the circumferential direction. In this way, a more homogeneous temperature distribution is preferably obtained when the heat transfer medium emerges from the heating chamber 160.

In particular, the speed is selected to be so high that an optically dense or approximately dense heat transfer medium film is produced over the entire circumference of the wall 170.

In particular, the residence time of the heat transfer medium in the interior can be increased. In this way, the efficiency of the heat transfer device 158 can preferably be increased.

In order to produce a heat transfer medium film that is as coherent as possible, the angle between the axis of rotation 178 and the direction of gravity G and the speed of rotation of the heating chamber 160 are preferably adapted to one another. Properties of the heat transfer medium and the wall 168, and in particular the friction properties, can also be included in the adaptation.

The heating chamber 160 of the heat transfer device 158 shown in FIGS. 2 to 16 preferably comprises a rotary coupling device 194, by means of which the inner container 168 is rotatably coupled to the support body 166.

Preferably, the inner container 168 can also be set into rotation about the axis of rotation 178 due to a rotational coupling of the same to the support body 166 by setting the support body 166 in rotation about the axis of rotation 178. The rotary coupling device 194 preferably comprises a first rotary coupling section 196 and two further rotary coupling sections 198.

The inner container 168 is preferably rotatably coupled to the support body 166 by means of the rotary coupling sections 196, 198 of the rotary coupling device 194.

The first rotary coupling section 196 is preferably arranged in the direction of gravity G above the two further rotary coupling sections 198.

The first rotary coupling section 196 and the two further rotary coupling sections 198 preferably each comprise a plurality of rotary coupling elements 200 which are arranged on the support body 166 and a plurality of rotary coupling elements 202 which are arranged on the inner container 168.

Rotary coupling elements 200 arranged on the support body 166 are, in particular, rotary coupling elements 204 on the support body side.

Rotary coupling elements 204 on the support body side are preferably fixed to the support body 166, for example screwed to it.

Rotary coupling elements 202 arranged on the inner container 168 are in particular rotary coupling elements 206 on the inner container side.

Rotary coupling elements 206 on the inner container side are preferably fixed directly or indirectly to the inner container 168, for example screwed to it.

For example, it is conceivable that rotary coupling elements 202, which are arranged on the inner container 168, are each firmly attached to a support ring 208. Rotary coupling elements 202 fixed on a respective support ring 208 are screwed to the support ring 208, for example.

A roundness of the inner container 168 can preferably be ensured by means of one or more support rings 208.

The heating chamber 160 comprises, for example, three support rings 208 for supporting the inner container 166, a support ring 208 preferably being assigned to each rotary coupling section 196, 198.

The support rings 208 are designed to be closed in an annular manner and, in particular, are made of the same material as the inner container 168.

The support rings 208 have, for example, a U-shaped cross section.

The support rings 208 are preferably fixed on the inner container 168 and, in particular, are arranged radially outside the inner container 168.

The first rotary coupling section 196 comprises, for example, four rotary coupling elements 200 which are arranged on the support body 166 and four rotary coupling elements 202 which are arranged on the inner container 168.

It can furthermore be favorable if the two further rotary coupling sections 202 each comprise five rotary coupling elements 200 which are arranged on the support body 166, and furthermore each comprise five rotary coupling elements 202 which are arranged on the inner container 168.

In each case a rotary coupling element 200, which is arranged on the support body 166, is preferably assigned a rotary coupling element 202, which is arranged on the inner container 168. The rotary coupling elements 200, 202 of the rotary coupling sections 196, 198 are preferably arranged in a uniformly distributed manner over a circumference of the heating chamber 160.

Preferably, all of the rotary coupling elements 200, 202 of a respective rotary coupling section 196, 198 are arranged essentially at the same height in relation to an axial direction 210.

The inner container 168 is preferably supported on the support body 166 in the direction of gravity G by means of the first rotary coupling section 196. The inner container 168 is supported in particular by means of the rotary coupling elements 202 of the first rotary coupling section 196, which are arranged on the inner container 168, on the rotary coupling elements 200 of the first rotary coupling section 196, which are arranged on the support body 166.

The inner container 168 is supported by means of the first rotary coupling section 196 on the support body 166, in particular in the axial direction 210.

Preferably, a force component of the weight acting on the inner container 168 acting parallel to the axis of rotation 178 and / or in the axial direction 210 is absorbed by means of the first rotary coupling section 196.

Rotary coupling elements 200 of the first rotary coupling section 196 arranged on the support body 166 form, in the axial direction 210, in particular an abutment for rotary coupling elements 202 of the first rotary coupling section 196 arranged on the inner container 168.

The first rotary coupling section 196 preferably forms an axial fixed bearing. Rotary coupling elements 202 of the first rotary coupling section 196, which are arranged on the inner container 168, preferably each comprise two guide surfaces 212.

A rotary coupling element 200 of the first rotary coupling section 196, which is arranged on the support body 166, is preferably guided between the two guide surfaces 212.

The two guide surfaces 212 of the rotary coupling elements 202 of the first rotary coupling section 196 are in particular arranged parallel to one another and / or parallel to the radial direction 192.

Such an arrangement of the two guide surfaces 212 of the rotary coupling elements 202 of the first rotary coupling section 196 can preferably enable the rotary coupling elements 202, which are arranged on the inner container 168, in the radial direction 192 relative to the rotary coupling elements 202, which are attached to the support body 166 are arranged, are relocatable.

The rotary coupling elements 202 of the first rotary coupling section 196 arranged on the inner container 168 preferably each include an axial stop element 214 for the rotary coupling elements 200 arranged on the support body 166.

The axial stop element 214 of a respective rotary coupling element 200, arranged on the inner container 166, of the first rotary coupling section 196 comprises, in particular, two support surfaces 216.

Preferably, the support surface 216 of the axial stop elements 214 of the rotary coupling elements 202 of the first rotary coupling section 196 arranged on the inner container 168 is essentially flat. It can be favorable if the guide surfaces 212 and the support surfaces 216 of the rotary coupling elements 202 of the first rotary coupling section 196 are arranged symmetrically to a plane spanned by the axis of rotation 178 and the radial direction 192.

It can be particularly favorable if an angle 218 is arranged between a plane 220, in which a guide surface 212 of a respective rotary coupling element 202 of the first rotary coupling section 196, and a plane 222, in which a support surface 216 of the respective rotary coupling element 202 adjacent to the guide surface 212 of the first Drehkopplungsab section 196 is arranged greater than an angle between the axial direction 210 and the direction of a resulting force vector of the axial force acting on the rotary coupling element 202 and the radial force acting on the rotary coupling element 202.

It can be favorable if rotary coupling elements 202 of the two further rotary coupling sections 198, which are arranged on the inner container 168, can be displaced in the axial direction 210 relative to rotary coupling elements 200 of the two further rotary coupling sections 198, which are arranged on the support body 166.

The inner container 168 is supported in the axial direction 210 by means of the rotary coupling elements 202 of the two further rotary coupling sections 198, which are arranged on the inner container 168, in particular not on the rotary coupling elements 200 of the two further rotary coupling sections 198, which are arranged on the support body 166.

The two further rotary coupling sections 198 preferably form an axial floating bearing.

Preferably, free axial thermal expansion of the inner container 168 can be made possible by means of the two further rotary coupling sections 198. It can also be favorable if rotary coupling elements 202 of the rotary coupling sections 196, 198, which are arranged on the inner container 168, can be displaced in the radial direction 192 relative to rotary coupling elements 200 of the rotary coupling sections 196, 198, which are arranged on the support body 166 .

The first rotary coupling section 196 and the two further rotary coupling sections 198 in particular form a radial floating bearing.

It can be favorable if rotary coupling elements 202 of the two further rotary coupling sections 198 arranged on the inner container 168 each comprise two guide surfaces 212, one rotary coupling element 200 of the two further rotary coupling sections 198 arranged on the support body 166 being guided between the two guide surfaces 212.

Preferably, the fact that rotary coupling elements 202 of the two further rotary coupling sections 198 arranged on the inner container 168 each comprise two guide surfaces 212, between which a rotary coupling element 200 of the two further rotary coupling sections 198 arranged on the support body 166 is arranged, jamming of the rotary coupling elements 200, 202 due to can be prevented from thermal expansion.

The two guide surfaces 212 of the rotary coupling elements 202 of the two further rotary coupling sections 198 are preferably arranged parallel to one another and / or parallel to the axial direction 210 and / or parallel to the radial direction 192.

Preferably, by such an arrangement of the two guide surfaces 212 of the rotary coupling elements 202 of the two further rotary coupling sections 198 it can be made possible that rotary coupling elements 202 of the rotary coupling sections 198, which are arranged on the inner container 168, in the radial direction 192 relative to the rotary coupling elements 200 of the Rotary coupling sections 198, which are arranged on the support body 166, are displaceable.

In this way, it can preferably also be made possible that rotary coupling elements 202 of the two further rotary coupling sections 198, which are arranged on the inner container 168, can be displaced in the axial direction 210 relative to rotary coupling elements 200 of the two further rotary coupling sections 198, which are arranged on the support body 166 .

The rotary coupling elements 200, which are arranged on the support body 166, preferably comprise a guide element 223, which protrudes between the two guide surfaces 212 of a respective rotary coupling element 168 arranged on the inner container 168.

The guide element 223 of the rotary coupling elements 200 arranged on the support body 166 is in particular an inner guide element.

The two guide surfaces 212 of the rotary coupling elements 202 arranged on the inner container 168 form, in particular, an outer guide element.

The guide element 223 of the rotary coupling elements 200 arranged on the support body 166 is preferably convex on its sides facing the guide surfaces 212.

For example, it is conceivable that the guide element 223 of the rotary coupling elements 200 arranged on the support body 166 is essentially spherical.

The first rotary coupling section 196 and the two further rotary coupling sections 198 preferably each include one or more radial stop elements, not shown in the drawing, which allow a radial displacement the rotary coupling elements 202, which are arranged on the inner container 168, relative to the rotary coupling elements 200 which are arranged on the support body 166, limit.

A radial stop element is preferably integrated in each of the rotary coupling elements 200 arranged on the support body 166 and / or in the rotary coupling elements 202 arranged on the inner container 168 of a respective rotary coupling section 196, 198.

The radial stop elements are preferably arranged and / or aligned such that a radial displacement of the rotary coupling elements 202, which are arranged on the inner container 168, relative to the rotary coupling elements 200, which are arranged on the support body 166, only when a maximum operating temperature is reached the heat exchanger device 158 is limited.

The heating chamber 160 preferably comprises an insulation material 224 which is arranged between the support body 166 and the inner container 168.

The insulation material 224 is arranged in particular in a gap 226 between the support body 166 and the inner container 168.

It can be particularly favorable if an insulation layer 228 made of the insulation material 224 is arranged on the support body 166, in particular fixed to it, and essentially completely covers an inner surface of the support body 166 facing the inner container 168.

It can also be favorable if the insulation material 224 comprises a first insulation material, for example glass wool, silicate wool or an aluminum oxide fiber, and / or if the insulation material 224 comprises a second insulation material, for example a nanoporous insulation material. By arranging the insulation material 222 on the support body 166, a mechanical load on the insulation material 222 can preferably be reduced, for example a mechanical load due to flexing movements. Preferably, by reducing the mechanical load on the insulation material 222, a durability and / or service life of the insulation material 222 can be lengthened.

In order to connect the insulation material 224 to the support body 166, it has been found to be advantageous to initially arrange the insulation material 224 on the support body 166.

The insulation material 224 is in particular fixed to the inner surface of the support body 166 facing the inner container 168.

Subsequently, the inner container 168 in particular is arranged in the support body 166.

The rotary coupling elements 202 of the first rotary coupling section 196 and of the two further rotary coupling sections 198 are then preferably arranged on the inner container 168.

The rotary coupling elements 202, which are arranged on the inner container 168, are preferably arranged on the inner container 168 via an opening 230 in the support body 166, which is in particular arranged in a lateral surface of the support body 166 (see FIG. 5).

The rotary coupling elements 200 of the first rotary coupling section 196 and of the two further rotary coupling sections 198 are then preferably arranged on the support body 166.

It can be favorable here if a respective opening 230 in the support body 166 when a respective rotary coupling element 200 is arranged the support body 166 is closed, in particular by means of a closure plate 232.

The angle 218 is selected in particular such that in the event of a load change due to a rotation of the heating chamber 160 in the direction of the arrow 234 shown in FIG.

Preferably, mutually opposite guide surfaces 212 and support surfaces 216 alternately absorb the forces transmitted by the guide element 223.

In particular, it is conceivable that during a downward movement, which takes place in the left area of the heating chamber 160 in FIG. 8, for example, the forces are essentially absorbed by the right guide surface 212 shown in FIG. 11 and the right support surface 216.

During an upward movement, which takes place in the right region of the heating chamber 160 in FIG. 8, for example, the forces are preferably essentially absorbed by the left guide surface 212 shown in FIG. 12 and the left support surface 216.

By changing the guide surfaces 212 absorbing the forces on the two further rotary coupling sections 198, friction-free thermal expansion in the radial direction can preferably be ensured.

Preferably, a friction-free thermal expansion in the radial direction can also be ensured on the first rotary coupling section 196 by a corresponding change in the guide surfaces 212 and support surfaces 216 that absorb the forces. Thus, by means of the first rotary coupling section 196 and by means of the two further rotary coupling sections 198, in particular free radial thermal expansion of the inner container 168 can be made possible.

By free axial thermal expansion and / or by free radial thermal expansion of the inner container 168, a uniform deformation of the inner container 158 due to thermal expansion can preferably be made possible during operation of the heat transfer device 158.

In particular, the inner container 168 can be prevented from bulging.

A uniform deformation of the inner container 168 due to thermal expansion can ensure, in particular, a uniform distribution of the heat transfer medium when the heat transfer device 158 is in operation.

Preferably, local hotspots can be prevented, which can lead to the inner container 168 burning through, for example.

It can also be beneficial if a free axial and / or radial thermal expansion of the inner container 168 can extend the durability and / or service life of the heat transfer device 158.

According to the invention, a heat transfer device 158 can preferably be provided which can be produced simply and inexpensively and which in particular has a high degree of efficiency and a longer shelf life. List of reference symbols for solar thermal power plant

Heliostat field

Heliostat

Mirror surface

Solar radiation

Solar radiation receiving device

Solar radiation

Tower receiver

tower

Soil first cycle

Heat exchanger

High temperature branch

Low temperature branch

exit

entry

exit

Input second circuit heat storage heat storage turbine electrical generator

High temperature branch

exit

Low temperature branch

capacitor

entry

pump

Heat exchanger device Heating chamber

Rotary drive device

Feeding device

Support body

Inner container

Wall

Outer jacket

Inner jacket

inner space

Axis of rotation

Lower end diameter

Inlet opening

Coupling area

Outcoupling area upper end radial direction

Rotary coupling device, first rotary coupling section, further rotary coupling section

Rotary coupling element

Rotary coupling element support body-side rotary coupling element inner container-side rotary coupling element

Support ring in the axial direction

Guide surface axial stop element

Support surface

angle

level

level

Guide element Insulation material gap Insulation material opening Closing plate Arrow direction of gravity

Claims

Claims 1. Heat transfer device (158), in particular solar radiation receiver device (110), wherein the heat transfer device (158) comprises: a heating chamber (160) which comprises a wall (170) and an interior space (176) surrounded by the wall (170); a rotary drive device (162); a feed device (164) for feeding a heat transfer medium to the interior (176) of the heating chamber (160), the heating chamber (160) being rotatable about an axis of rotation (178) by means of the rotary drive device (162) in such a way that the heat transfer medium is formed a heat transfer medium film can be guided along an inside of the wall (170) of the heating chamber (160), the heating chamber (160) comprising a support body (166) and an inner container (168) which comprises the wall (170). 2. Heat transfer device (158) according to claim 1, characterized in that the heating chamber (160) comprises a rotary coupling device (194) by means of which the inner container (168) is rotatably coupled to the support body (166). 3. Heat exchanger device (158) according to claim 2, characterized in that the rotary coupling device (194) comprises a first rotary coupling section (196) and / or one or more further rotary coupling sections (198), the inner container (168) by means of the rotary coupling sections (196, 198) of the rotary coupling device (194) is rotatably coupled to the support body (166). 4. Heat exchanger device (158) according to claim 3, characterized in that the inner container (168) is supported by means of the first rotary coupling section (196) in the direction of gravity (G) on the support body (166). 5. Heat exchanger device (158) according to claim 3 or 4, characterized in that the first rotary coupling section (196) is arranged in the direction of gravity (G) above the one or more further rotary coupling sections (198). 6. Heat exchanger device (158) according to one of claims 3 to 5, characterized in that the first rotary coupling section (196) and / or the one or more further rotary coupling sections (198) each have one or more rotary coupling elements (200) which are attached to the support body (166) are arranged, and one or more rotary coupling elements (202), which are arranged on the inner container (168), comprise. 7. Heat exchanger device (158) according to claim 6, characterized in that rotary coupling elements (202) which are arranged on the inner container (168) are each placed firmly on a support ring (208). 8. Heat transfer device (158) according to claim 6 or 7, characterized in that rotary coupling elements (200) which are arranged on the support body (166) are fixed on this. 9. Heat exchanger device (158) according to one of claims 3 to 8, characterized in that the inner container (168) by means of one or more rotary coupling elements (202) of the first rotary coupling section (196), which are arranged on the inner container (168) , on one or more rotary coupling elements (200) of the first rotary coupling section (196) which are arranged on the support body (166). 10. Heat exchanger device (158) according to one of claims 3 to 9, characterized in that rotary coupling elements (202) of the one or more further rotary coupling sections (198), which are arranged on the inner container (168), in an axial direction (210) are displaceable relative to rotary coupling elements (200) of the one or more further rotary coupling sections (198) which are arranged on the support body (166). 11. Heat exchanger device (158) according to one of claims 3 to 10, characterized in that rotary coupling elements (202) of the rotary coupling sections (196, 198) which are arranged on the inner container (168) in a radial direction (192) relative to Rotary coupling elements (200) of the rotary coupling sections (196, 198), which are arranged on the support body (166), are displaceable. 12. The heat exchanger device (158) according to claim 11, characterized in that the first rotary coupling section (196) and / or the one or more further rotary coupling sections (198) each comprise one or more radial stop elements which allow a radial displacement of the rotary coupling elements (202 ), which are arranged on the inner container (168), relative to the rotary coupling elements (200) which are arranged on the support body (166) limit. 13. Heat exchanger device (158) according to one of claims 3 to 12, characterized in that the rotary coupling elements (202) of the one or more further rotary coupling sections (198) arranged on the inner container (168) each comprise two guide surfaces (212), one in each case on the support body (166) arranged rotary coupling element (200) of the one or more further Rotary coupling sections (198) is guided between the two guide surfaces (212). 14. Heat exchanger device (158) according to claim 13, characterized in that the two guide surfaces (212) of a respective rotary coupling element (202) of the one or more further rotary coupling sections (198) parallel to one another and / or parallel to an axial direction ( 210) and / or parallel to a radial direction (192) are arranged. 15. Heat exchanger device (158) according to one of claims 3 to 14, characterized in that the rotary coupling elements (202) of the first rotary coupling section (196) arranged on the inner container (168) each comprise two guide surfaces (212), one on the support body ( 166) arranged rotary coupling element (200) of the first rotary coupling portion (196) between the two guide surfaces (212) is guided. 16. Heat exchanger device (158) according to claim 15, characterized in that the two guide surfaces (212) of a respective rotary coupling element (202) of the first rotary coupling section (196) are arranged parallel to one another and / or parallel to a radial direction (192). 17. Heat exchanger device (158) according to one of claims 13 to 16, characterized in that a respective rotary coupling element (200) which is arranged on the support body (166) comprises a guide element (223) which is located between the two guide surfaces (212) a respective rotary coupling element (202) arranged on the inner container (168) protrudes. 18. Heat exchanger device (158) according to one of claims 3 to 17, characterized in that one or more on the inner container (168) arranged rotary coupling elements (202) of the first rotary coupling portion (196) each comprise an axial stop element (214) for one or more rotary coupling elements (200) arranged on the support body (166). 19. Heat exchanger device (158) according to claim 18, characterized in that the axial stop element (214) of a respective rotary coupling element (202) of the first rotary coupling section (196) arranged on the inner container (168) comprises two support surfaces (216). 20. Heat exchanger device according to claim 19, characterized in that an angle (218) between a plane (220) in which a guide surface (212) of a respective rotary coupling element (202) of the first rotary coupling section (196) is arranged and a plane ( 222), in which one of the guide surface (212) adjacent support surface (216) of the respective rotary coupling element (202) of the first rotary coupling section (196) is arranged, is greater than an angle between the axial direction (210) and the direction of a resulting force vector of the the axial force acting on the rotary coupling element (202) and the radial force acting on the rotary coupling element (202). 21. Heat exchanger device (158) according to claim 19 or 20, characterized in that the guide surfaces (212) and the support surfaces (216) of a respective rotary coupling element (202) of the first rotary coupling section (196) symmetrically to one through the axis of rotation (178) and a radial direction (192) spanned plane are arranged. 22. Heat exchanger device (158) according to one of claims 1 to 21, characterized in that the support body (166) and / or the Inner containers (168) are essentially designed in the shape of a hollow cylinder. 23. Heat transfer device (158) according to one of claims 1 to 22, characterized in that the inner container (168) comprises a high-temperature stable material or is formed from this, for example a metallic material, a ceramic material or a fiber-reinforced ceramic material. 24. Heat transfer device (158) according to one of claims 1 to 23, characterized in that the support body (166) comprises a metallic material, a ceramic material or a fiber-reinforced plastic material or is formed from this. 25. Heat transfer device (158) according to one of claims 1 to 24, characterized in that the heating chamber (1600) comprises one or more support rings (208) for supporting the inner container (166). 26. Heat exchanger device (158) according to one of claims 1 to 25, characterized in that the support body (166) of the heating chamber (160) is a structural component. 27. Heat transfer device (158) according to one of claims 1 to 26, characterized in that the heating chamber (160) comprises an insulation material (224) which is arranged between the support body (166) and the inner container (168). 28. Heat transfer device (158) according to one of claims 1 to 27, characterized in that an insulation material (224) arranged between the support body (166) and the inner container (168) is fixed on the support body (166). 29. Heat transfer device (158) according to claim 27 or 28, characterized in that the insulation material (224) comprises a first insulation material, for example glass wool, silicate wool or an aluminum oxide fiber, and / or that the insulation material comprises a second insulation material, for example a nanoporous one Isolation material, includes. 30. Heat exchanger device (158) according to one of claims 1 to 29, characterized in that the axis of rotation (178) relative to the direction of gravity (G) at an angle in the range of approximately 15 ° to approximately 60 °, preferably in the range of approximately 30 ° to about 45 °. 31. A method for operating a heat transfer device (158), in particular a solar radiation receiver device (110), preferably a heat transfer device (158) according to any one of claims 1 to 30, the method comprising: Rotating a heating chamber (160) of the heat transfer device (158) about an axis of rotation (178) by means of a rotary drive device (162), wherein a support body (166) of the heating chamber (160) by means of the rotary drive device (162) in a rotation about the axis of rotation ( 178) ver settable, wherein an inner container (168) of the heating chamber (160) is rotatably coupled to the support body (166) by means of a rotary coupling device (194) of the heating chamber (160). 32. The method according to claim 31, characterized in that rotary coupling elements (202) of a first rotary coupling section (196) of the rotary coupling device (194) arranged on the inner container (168) each comprise two guide surfaces (212), one on the support body (166) each. arranged rotary coupling element (200) of the first rotary coupling section (196) is guided between the two guide surfaces (212) and is supported alternately on the two guide surfaces (212) when the heating chamber (160) rotates about the axis of rotation (178). 33. The method according to claim 31 or 32, characterized in that one or more rotary coupling elements (202) arranged on the inner container (168) of a first rotary coupling section (196) of the rotary coupling device (194) each have an axial stop element (214) for one or a plurality of rotary coupling elements (200) arranged on the support body (166), the axial stop element (214) of a respective rotary coupling element (202) of the first rotary coupling section (196) arranged on the inner container (168) comprising two support surfaces (216), wherein A rotary coupling element (200) of the first rotary coupling section (196) arranged on the support body (166) is supported alternately on the two support surfaces (216) when the heating chamber (160) rotates about the axis of rotation (178). 34. The method according to any one of claims 31 to 33, characterized in that on the inner container (168) arranged rotary coupling elements (202) of one or more further rotary coupling sections (198) of the rotary coupling device (194) each comprise two guide surfaces (212), wherein one on the support body (166) arranged rotary coupling element (200) of the one or more further rotary coupling sections (198) is guided between the two guide surfaces (212) and when the heating chamber (160) rotates about the axis of rotation (178) alternately supported on the two guide surfaces (212). 35. A method for producing a heat exchanger device (158), in particular a solar radiation receiver device (110), preferably a heat exchanger device (158) according to one of claims 1 to 30, the method comprising the following: Providing a support body (166); Providing an inner container (168); Placing the inner container (168) in the support body (166); Arranging rotary coupling elements (202) of a first rotary coupling section (196) and / or one or more further rotary coupling sections (198) on the inner container (168); and arranging rotary coupling elements (200) of a first rotary coupling section (196) and / or one or more further rotary coupling sections (198) on the support body (166). 36. The method according to claim 35, characterized in that rotary coupling elements (202) which are arranged on the inner container (168) are arranged on the inner container (168) via an opening (230) in the support body (166). 37. The method according to claim 35 or 36, characterized in that an insulation material (224) is arranged on the support body (166) before the inner container (168) is arranged in the support body (166). 38. The method according to claim 37, characterized in that the insulation material (224) is placed on an inner surface facing the inner container (168) before the rotary coupling elements (200, 202) are arranged on the inner container (168) and on the support body (166) of the support body (166) is set.